I have two questions. Does anyone use Grab? How do I keep the application open? I use it for school. The reason why is I can't save the webpage as a PDF, but I can screenshot it. Using ⌘⇧4 saves a selectable screenshot, but with Grab I can edit the filename easier. After each screen shot when I click back on safari the app closes. I see no options/preferences just pointer options. Any recommendations on different apps or how to get this to work would really be appreciated.